31672070 has 8 divisors (see below), whose sum is σ = 57009744. Its totient is φ = 12668824.

The previous prime is 31672063. The next prime is 31672073. The reversal of 31672070 is 7027613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31672073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583594 + ... + 1583613.

It is an arithmetic number, because the mean of its divisors is an integer number (7126218).

Almost surely, 2^31672070 is an apocalyptic number.

31672070 is a deficient number, since it is larger than the sum of its proper divisors (25337674).

31672070 is a wasteful number, since it uses less digits than its factorization.

31672070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3167214.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 31672070 is about 5627.7944169985. The cubic root of 31672070 is about 316.3919920426.

Adding to 31672070 its reverse (7027613), we get a palindrome (38699683).

The spelling of 31672070 in words is "thirty-one million, six hundred seventy-two thousand, seventy".